Microbial Ecosystems: The Foundation of Life On Earth. Microbial ecosystems sustain all forms of life -including humansin all environments. However, there are many unknowns about how these diverse and complex communities form, evolve and survive. The study of microbial ecosystems requires biology and a lot of physics and chemistry, all combined. Dr. Otto Corderos (MIT) lab is a leading force in this field. He explains the physics and chemistry involved in the formation of these amazing -and essential- ecosystems. 00:30:08